Fly exit



y 1930- 1 H. G; LEWIS 1,757,868

FLY EXIT Filed 001;. 8 192 I N VEN TOR.

Gillan 115',

Patented May 6, 1930 UNITE srras r FFME FLY EXIT This invention relates to a fly exit for screen doors and window screens, and has for its object to provide, in a manner as hereinafter set forth, a fly exit opening and a fly exit chair nel from inherent parts of the reticulated element of the screen door or window screen, and further for reinforcing that portion of the material of such element bordering the fly exit opening and the said inherent parts by combining therewith a reinforcing medium which envelops such portion and parts and fills the interstices thereof.

Further objects of the invention are to provide, in a manner as hereinafter set forth, the

reticulated element of a screen door or window screen with a fly exit which is simple in construction and arrangement, strong, durable, compact, thoroughly eflicient in its use and comparatively inexpensive to set up.

With the foregoing and other objects in View the invention consists of the novel con struction, combination and arrangement of parts as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claims hereunto appended.

In the drawingswherein like reference characters denote correspondlng parts throughout the several views Figure 1 is a fragmentary view, in front elevation of the reticulated or foraminous element of a door or window screen showing the same provided with a plurality of fly exits in accordance with this invention.

Figure 2 is a section on line 22 Figure 1.

Figure 3 is a section on line 33, Figure 1.

Figure 4 is a fragmentary view in rear elevation of the reticulated or foraminous element of a screen door or window showing the same provided with a fly exit in accordance with this invention.

The drawing illustrates the reticulated or foraminous element of a door or window screen provided with a pair of fly exits, in

so accordance with this invention, but it is to Application filed October 8, 1929. Serial No. 398,211.

be understood that such element may be formed with but a single exit or more than two exits.

The reticulated or foraminous element is indicated at 5, and as shown in Figure 1 is formed with two spaced sets of slits. Each set consists of a pair of oppositely extending V-shaped slits and an elongated, connecting slit which merges at its ends into the V.-shaped slits at the centers of the latter. The edges of one of the ii-shaped slits of each set are indicated at 6, 7 and the edges of the other V- shaped slits of each set are indicated at 8, 9. The edges of the elongated connecting slit of each set are indicated at 10, 11. When each. connecting slit is formed the edges 6 and 8 of each pair of V-shaped slits are split at the centers thereof.

That part of the element 5, between the edges 6, 8 is directed outwardly at a downward inclination to provide a wall portion 12. That part of the element 5 between the half edges 7, 9 is directed outwardly at an upward inclination to provide a wall portion 13.

That part of the element 5, freed by one V- shaped slit of a set is directed outwardly at an inward inclination to provide a wall porvtion 14 and that part of the element 5 freed by the other V-shaped slit of the set is directed outwardly at an inward inclination to form a wall portion 15; The wall portions 14 and 15 extend towards each other. The wall portions 12 and 13 extend towards each other.

The bends between the wall portions 12 and 13 and indicated at 16 in connection with the bends of the wall portions 14 and 15 and indicated at 17 provide a fly exit opening 18.

The wall portions 12, 13, 14 and 15 form a fly exit channel 19 of tapered cross section and which gradually increases in height from its outer end to its point of mergence with the opening 18. r

The portion 12 provides the top wall of the channel, the portion 13 the bottom wall and 35 the portions 14, 15'the end wall. The outer end of the top wall 12 is spaced a substantial distance from the outer end of the wall 13. The walls 12 and 13 are also spaced from the walls 14 and 15. The walls 14 and 15 are of Leo triangular contour and the apexes thereof are disposed centrally of the end of the opening formed between the outer ends of the walls 12 and 13 and such opening being the exit for the channel 19.

The element 5 has that part thereof bordering the opening 18 for the desired extent embedded in a reinforcing medium 20, which fills the interstices of such part, and such medium is extended to embed the wall forming portions 12, 18, 14 and 15, as well as to fill the interstices of such portions. Preferably the reinforcing medium will possess a nonlight emitting characteristic and is formed from liquid solder, but it is to be understood that any material suitable for the purpose intended may be employed.

lVhat I claim is:

1. A reticulated element having plural slits and the inherent parts thereof freed by said slits directed outwardly to provide a fly exit opening and a fly exit channel leading from said opening, and a reinforcing medium filling the interstices of the walls of said channel and the interstices of the parts of said element bordering said opening.

2. A reticulated element having plural slits and the inherent parts thereof freed by said slits directed outwardly to provide a fly exit opening and a fly exit channel leading from said opening, said openin being of rectangular contour and said channel gradually decreasing in height from its outer end to said opening, and a reinforcing medium filling the interstices of the walls of said channel and the interstices of the parts of said element bordering said opening.

3. A reticulated element provided with a pair of oppositely extending, spaced, V shaped slits and an elongated connecting slit merging at its ends in the centers of said V- shaped slits, the material freed by said slits projected outwardly to provide a fly exit opening and a fly exit channel leading from said opening, and a reinforcing medium filling the interstices of the walls of said channel and the parts of said element bordering said opening.

4. A reticulated element having plural slits and the inherent parts thereof freed by said slits directed outwardly to provide a fly exit opening and a fly exit channel leading from said opening, and a reinforcing medium fill ing the interstices of the walls of said chan nel and the interstices of the parts of said element bordering said opening, said reinforcing medium possessing a non-light emitting characteristic.

5. A reticulated element having plural slits and the inherent parts thereof freed by said slits directed outwardly to provide a fly exit opening and a fly exit channel leading from said opening, said opening being of rectangular contour and said channel gradually decreasing in height from its outer end to said opening, and a reinforcing medium filling the interstices of the Walls of said channel and the interstices of the parts of said element bordering said opening, said reinforcing medium possessing a non-light emitting characteristic.

6. A reticulated element provided with a pair of oppositely extending, spaced, V- shaped slits and an elongated connecting slit merging at its ends in the centers of said V- shaped slits, the material freed by said slits projected outwardly to provide a fly exit opening and a fly exit channel leading from said opening, and a reinforcing medium filling the interstices of the walls of aid channel and the parts of said element bordering said opening, said reinforcing medium possessing a non-light emitting characteristic.

In testimony whereof, I afi'ix my signature hereto.

HUGH Gr. LEWIS. 

